[Issue 20071] New: ref locals

d-bugmail at puremagic.com d-bugmail at puremagic.com
Mon Jul 22 06:58:08 UTC 2019


          Issue ID: 20071
           Summary: ref locals
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: turkeyman at gmail.com

It's frustrating that we can only use `ref` for function arguments. I should be
able to declare a local variable ref to capture the result of a ref function,
or to simplify a long expression.

ref int fun();

void test()
  ref int refLocal = fun();
  ref int resolveExpression = thing[10].something().member.x;

It feels very lame to use pointers in these cases.
It may also change semantics of assignment expressions when using pointers.


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